Casio_CTK-711EX_Service_Manual电路图.pdf

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1、GM SOUND KEYBOARD CTK-711EX JUL.1998 CTK-711 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2-WAY BASS REFLEX SPEAKER MODULATION PITCH BEND 2-WAY BASS REFLEX SPEAKER 232 TONES 16 CHANNEL MIXER TEMPO REGISTRATION BANKABCDESTORE EXTERNALCH1 UPPE

2、R1 INTERNAL MIXER SELECTTONE EXPANDERACCOMPSEQUENCER TRACK DSP CONTRAST FREE SESSION ONE TOUCH PRESET TONE RHYTHM LAYER/ AUTO HARMONIZE SPLIT CH2 UPPER2 CH3 LOWER1 CH4 LOWER2 CH5 ACC VOL. CH6 CHORD1 CH7 CHORD2 CH8 CHORD3 CH9 BASS CH10 RHYTHN CH11 TR1 CH12 TR2 CH13 TR3 CH14 TR4 CH15 TR5 CH16 0 1 4 7

3、2 5 8 3 6 9 TR6 10DSP ENVELOPE CURSOR SYNTH DELETE /NO/YES DISK ENTER TOUCH RESPONSE TRANSPOSE/ TUNE/MIDI PITCH ENVELOPE MAIN MENU/ CHANNEL VOLUME SUB MENU/ CHANNEL SELECT : : 00 FLAT 01-17 VIBRATO AMP ENVELOPE PARAMETER RESET DECAY ENTER SUSTAIN 18-45 OTHERS DEMO 110 RHYTHMS POWERMODE SEQUENCER FUL

4、L RANGE CHORD USER RHYTHM 100109 FINGERED SONG INTRO NORMAL/ FILL-IN VARIATION/ FILL-IN SYNCHRO/ ENDING START/ STOP PATTERN CASIO CHORD VOLUME MAX MIN RECORD RadioFans.CN 收音机爱 好者资料库 INDEX 1 CONTENTS Safety Notice - 2 Specifications- 3 Important Operation - 5 Block Diagram - 6 Circuit Description - 7

5、 Diagnostic Program- 20 Major Waveforms - 25 Printed Circuit Board - 26 Exploded View - 28 Parts List- 29 Schematic Diagrams- 31 RadioFans.CN 收音机爱 好者资料库 2 SAFETY NOTICE CAUTION! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. ADVARSE! Lithiumbat

6、teri. Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. Lever det brugte batteri tilbage tili leverandoren. VAROITUS Paristo voijht, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan valmistajan suosittelemaan tyyppiin. Hvit kytetty p

7、aristo valmistajan ohjeiden mukaisesti. VARNING Felaktigt batteribyte kan medf fara fr explosion. Anvnd dr- fr endast samma typ eller likvrdig typ enligt apparat- tillverkarens rekommendation. Kassera frbrukade batterier enligt tillverkarens anvisning. DENMARK: FINLAND: SWEDEN: RadioFans.CN 收音机爱 好者资

8、料库 3 SPECIFICATIONS GENERAL Keyboard:61 standard-size keys, 5 octaves (with touch response on/off; ExLight/ Light/Normal/Heavy touch) Tones:232 (128 General MIDI, 64 variation, 8 drum, 32 user); with layer and split Rhythm instrument tones:53 Polyphony:32 notes maximum (16 for certain tones) Digital

9、 effects:10 (REVERB 1, 2, 3; CHORUS; TREMOLO; PHASE SHIFTER; OR- GAN SPEAKER; ENHANCER; FLANGER; EQ LOUDNESS) Auto accompaniment Rhythm patterns:110 (100 + 10 user rhythms) Tempo:Variable (226 steps, = 30 to 255) Chords:3 fingering methods (CASIO CHORD, FINGERED, FULL RANGE CHORD) Rhythm controller:

10、Start/Stop, Intro, Normal/Normal Fill-In, Variation/Variation Fill-In, Synchro/Ending Accomp volume:0 to 127 (128 steps) One touch presets:Recalls settings for tone, tempo, layer, and Auto Harmonize in accor- dance with rhythm. Auto harmonize:Automatic addition of notes that harmonize with melody no

11、te in ac- cordance with specified Auto Accompaniment chords. Free session Number of patterns:100 (Auto Accompaniment function based on preset chord progres- sions.) Song sequencer Songs:2 Recording tracks:6 (2 through 6 are melody tracks) Recording method:Real-time Memory capacity (total for two son

12、gs):Approximately 4,500 notes Punch in:Supported Pattern sequencer Number of patterns:10 (Rhythm numbers 100 to 109) Memory capacity:Approximately 4,700 notes Elements:Intro, Normal, Variation, Normal Fill-In, Variation Fill-In, Ending Parts:Chord 1, 2, 3; Bass; Rhythm Recording method:Real-time Reg

13、istration memory Number of setups:20 (5 setups 4 banks) Memory contents:Tone, Rhythm, Tempo, Split on/off, Split point, Layer on/off, Auto Har- monize on/off, Mixer settings, Keyboard channel on/off, DSP (digital effect) on/off, DSP (digital effect) settings, Accompaniment mode, Touch Response setti

14、ngs, Assignable jack setting, Transpose, Tun- ing, Pitch Bend range, Sound range shift on/off Demo tunes:2 Synthesizer Parameters:PCM set, amp envelope set, attack rate, release rate, pitch envelope set, pitch, level, touch sensitivity, pan, filter sensitivity, filter level, trans- pose Mixer Channe

15、ls:16 Modes:Internal, External, External/Solo, External/Play Parameters:Program change number, volume, expression, pan, coarse tuning, fine tuning, Effect Send MIDI:16-channel multi-timbre receive, General MIDI Level 1 4 Other functions Pitch bend range:Adjustable (12 semitones upwards and downwards

16、) Modulation:Equipped Transpose:25 steps (12 semitones to +12 semitones) Tuning:Adjustable (A4 = approximately 440Hz 50 cents) Terminals MIDI terminal:IN, OUT Sustain/Assignable jack:Standard jack (sustain, sostenuto, soft, rhythm start/stop) Headphones/Output:Stereo standard jack Output Impedance:

17、250 Output Voltage: 5 V (RMS) MAX 12 V DC Power supply:Dual power supply system BatteriesSix D-size batteries Battery lifeApproximately 3 hours continuous operation on alkaline batteries AC adapter:AD-12 Auto power off:Turns power off approximately six minutes after last key operation. En- abled und

18、er battery power only, can be disabled manually. Speaker output:5 W + 5 W Power consumption:12 V18 W Dimensions:109.2 42.7 15.7 cm (43 1/16 16 13/16 6 3/16 inch) Weight (without batteries):Approximately 8.8 kg (19.4 lbs) Standard accessories:Music Stand; Keyboard Users Guide ELECTRICAL Current drain

19、 with 12 V DC: No sound output440 mA 20 % Maximum volume2000 mA 20 % with 10 keys from C3 to E4 pressed in whistle tone Volume: MAX., Velocity: MAX. DSP0: Reverb1, FDD: Replay Phone output level (Vrms with 8 load each channel): with tone Synth-Bass 4 toneL-ch (Key C4)108 mV 20 % Volume: MAX., Veloci

20、ty: MAX.R-ch (Key F3)102 mV 20 % DSP0: Reverb1 Speaker output level (Vrms with 8 load each channel): with tone Synth-Bass 4 toneL-ch (Key D3)7.2 mV 20 % Volume: MAX., Velocity: MAX.R-ch (Key F3)6.3 mV 20 % DSP0: Reverb1 Output level (Vrms with 47 k load each channel): with tone Synth-Bass 4 toneL-ch

21、 (Key C4)3600 mV 20 % Volume: MAX., Velocity: MAX.R-ch (Key F3)3200 mV 20 % DSP0: Reverb1 Minimum operating voltage:6.1 V 5 IMPORTANT OPERATION Full Initialization Use this procedure to return all keyboard settings to what they were when you purchased it. Note that this procedure clears all data fro

22、m memory. While holding down the ENTER button, turn on keyboard power. Press YES to initialize the keyboard or NO to turn on power without changing any settings. Parameter Initialization Use this procedure to return all keyboard settings to what they were when you purchased it. Note that this proced

23、ure does not affect user tones, user rhythms, registration memory contents, and display contrast settings. While keyboard power is on, press the +, , and ENTER buttons at the same time. Adjusting Display Contrast Display contrast can be adjust to one of 100 levels for easy viewing. Adjusting display

24、 contrast helps to make figures easier to read from any viewing angle. Within five seconds after pressing the CONTRAST button, press + to increase the contrast value (mak- ing the display darker) or to decrease it (making the display lighter). After you release CONTRAST, the message “Contrast” remai

25、ns on the display for a few moments, during which you can change the contrast setting further using + and or by inputting a contrast value with the number keys. The contrast can be set to a value from 0 to 99. The initial default setting is 50. GM (General MIDI): General MIDI standardizes MIDI data

26、to play music with same nuance between different MIDI instruments. Among GM conformed MIDI instruments, or commercially available musical data, music can be played with similar tones. SMF (Standard MIDI File): SMF is a standard file format for MIDI instruments and computer music software. SMF format

27、ted data can be played and transported easily among SMF complied instruments or musical data of different manufac- turers. R e se t? 6 BLOCK DIAGRAM ROM2 MSM23C3210MC -12CA89 LSI3 (32Mbit) ROM1 MSM27C802CZ-463 LSI2 (8Mbit) RAM1 TC551001BFL-70L LSI8 (1Mbit) VBR VBRAVDDDVDDCVDDVCCVDDVC VDD APO NMI SWC

28、K LSDT IC1 S1 HWR, RD RD, HWR, LWR RD, HWR, LWR 1RD, 1HWR, 1LWR A0 A15 KI0 KI7 KC0 KC8 SEG1 SEG40 OUT MIDI IN COM1 COM16 LEDA LEDF LEDCK, LEDCL D0 D15 D8 D15 Chip Selector TC74HC08 IC4 S-Register TC74HC164 IC302 S-Register TC74HC164 IC301 Back Light LCD Back up Power CR2032 Power Supply Circuit Q203

29、, Q204, Q207, Q208, Q212, Q213 Q205, Q206 CPU HD6473042F16-463 LSI9 Working RAM TC55257 GFL-70L LSI5 (256Kbit) LPF (L) LPF (R) D8 D15 RESET RD, HWR ECEB, EOEB EWEB RESB RESB PBO LCD Driver SED1278F2A LSI501 DB4 DB7 CONT, LRS, LR/W LE Keyboard SI0 SI7 FI0 FI7 KC0 KC7 WOK1 SOLP BOK Key Controller TC19

30、0C020AF-001 LSI10 Reset IC RN5VD40A IC3 Out put (L) (R) Speakers Back Light Driver NT-07 Q501, Q502 LEDs VDD Buttons A1 A4 D0 D15 RA0 RA20 ED0 ED8 EA0 EA14 RD0 RD15 Main Volume D/A Converter PD6376GS LSI1 Power Amp. LA4620 IC201 DSP HG51B155FD LSI4 A0 A3 7 KC0KC1KC2KC3KC4KC5KC6KC7 FI0C2 1C#2 1D2 1D#

31、2 1E2 1F2 1F#2 1G2 1 SI0C2 2C#2 2D2 2D#2 2E2 2F2 2F#2 2G2 2 FI1G#2 1A2 1A#2 1B2 1C3 1C#3 1D3 1D#3 1 SI1G#2 2A2 2A#2 2B2 2C3 2C#3 2D3 2D#3 2 FI2E3 1F3 1F#3 1G3 1G#3 1A3 1A#3 1B3 1 SI2E3 2F3 2F#3 2G3 2G#3 2A3 2A#3 2B3 2 FI3C4 1C#4 1D4 1D#4 1E4 1F4 1F#4 1G4 1 SI3C4 2C#4 2D4 2D#4 2E4 2F4 2F#4 2G4 2 FI4G

32、#4 1A4 1A#4 1B4 1C5 1C#5 1D5 1D#5 1 SI4G#4 2A4 2A#4 2B4 2C5 2C#5 2D5 2D#5 2 FI5E5 1F5 1F#5 1G5 1G#5 1A5 1A#5 1B5 1 SI5E5 2F5 2F#5 2G5 2G#5 2A5 2A#5 2B5 2 FI6C6 1C#6 1D6 1D#6 1E6 1F6 1F#6 1G6 1 SI6C6 2C#6 2D6 2D#6 2E6 2F6 2F#6 2G6 2 FI7G#6 1A6 1A#6 1B6 1C7 1 SI7G#6 2A6 2A#6 2B6 2C7 2 CIRCUIT DESCRIPT

33、ION KEY MATRIX Note: Each key has two contacts, the first conatct 1 and second contact 2. Key Second contact 2First contact 1 FI KC SI NOMENCLATURE OF KEYS F#3 G#3 A#3C#4 D#4F#4 G#4 A#4 C#5 D#5F#5G#5 A#5 F3G3A3B3C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6 D#3 C2D2E2F2G2A2B2C3D3E3B6A6G6F6E6D6C7 C#3A#2G#2F#2D#2C#2

34、A#6G#6F#6D#6C#6 8 KI0KI1KI2KI3KI4KI5KI6KI7 KC0MODEINTROCH8ACH16SPLIT KC1RECORDCH1CH9BE2 KC2SONGCH2CH10CHRHYTHM5 KC3PATTERNCH3CH11DENTERTONE8 KC4DSPCH4CH12E0 KC5CH5CH13STOREMIDI13 KC6CH6CH14G46 KC7BANKCH7CH15FSYNTH79 BUTTON MATRIX LED-B FINGERD LED-A FULL RANGE CHORD LED MATRIX LED-C CASIO CHORD LED-

35、E SYNTH LED-D FREE SESSION CON- TRAST FREE SESSION ONE TOUCH PRESET NORMAL/ FILL-IN VARIATION/ FILL-IN SYNCHRO/ ENDING START/ STOP TEMPO G TEMPO H MIXER SELECT TOUCH RESPONSE TRANS- POSE LAYER/ AUTO HARMO H/NO G/YES + DMSWDEMO LED-F TOUCH RESPONSE LED-H SONG LED-G PATTERN 9 VDD Battery set RESET CPU

36、 HD6473042F16-463 LSI9 Power Supply Circuit DSP HG51B155FD LSI4 RESB RESB Key Controller TC190C020AF-001 LSI10 DVDD DVDD DVDD VDD RESET APO PWSW From power switch RES NMI PB0 PA7 RESET PW/SW ON APO DVDD (5V) MEMORY DEVICES Each memory device has the following data. 1 RAM1 : S-RAM for operation progr

37、am, Register, Pattern and Song. (Upper part of data bus) 2 Internal ROM of CPU : Main program data for system operation 3 Internal RAM of CPU : Work area for system operation 4 ROM1 : Demo, Accompaniment data, Song, Pattern, Synth mode 5 ROM2 : Sound Waveforms/Tone data Digital sound effect 6 Workin

38、g RAM : Work area for DSP Initial reset When batteries are set or an AC adapter is connected, the reset IC provides a low pulse to the CPU. When the power switch is pressed, the CPU receives a low pulse of POWER signal. The CPU first raises APO signal to +5 V to generate DVDD voltage, then raises RE

39、SET signal to +5 V. During this period the DSP and the key controller LSI initialize their internal circuits. RESET CIRCUIT CPU ROM RAM 2 3 512 kbit 16 kbit DSP LSI9 LSI4 Working RAM 6 256 kbit LSI5 Internal Memory ROM1 4 8 Mbit LSI2 RAM1 1 1 Mbit LSI8 ROM2 5 32 Mbit LSI3 10 POWER SUPPLY CIRCUIT The

40、 power supply circuit provides various voltages as shown below. The voltage VDD (+5 V) is provided as long as batteries or AC adaptor is set. Other voltages are controlled by APO (Auto Power Off) signal from CPU. CPU HD6473042F16-463 LSI9 PA7 NMI PW/SW APO NMI PW/ON APO Power Supply +9V +12V From Ba

41、tteries or AC Adaptor 11 DSP and DAC CIRCUIT The DSP (Digital Signal Processor) and DAC (Digital Analog Converter) consists of the following circuits. RA22 Working RAM (256K-bit) TC55257DFL-70L LSI5 ROM2 MX23C3210MC-12CA89 LSI3 (32Mbit) ROM1 MSM27CB02CZ-463 LSI2 (8Mbit) SOLP BOK WOK1 EA0 EA14 D0 D15 ED0 ED15 KC0 KC7 SI0 SI7 FI0 FI7 RA0 RA18 RA0 R